Rock-crushing machine



July 7, 1925.

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INVENTOR.

JIM

A TTORNE Y.

Patented July 7, 192a a 1 U NlTE'D' STATES ton and State of New JBISGYlIZIVQ- invented a description;

an Improvement in Rock-Crushing Ma chines, of which the following is aspecification.

My invention relates to machines for crushing rocks and other likematerial andit has for one of'lts objects to provide an improved meansfor effecting adjustments of the crushing aws with respect to eachother. Other objects 'of my invention will be ointed" out in thedetailed description; 1 be apparent from such which follows or wi Inorder that my invention may be readily understood and its practic'aladvantages fully appreciated, reference may be'had to V the accompanyingdrawing in which I have illustrated one form of embodiment thereof.

However, as will be understood,- the invention is susceptible ofembodiment in other forms of construction than thatshown. In thedrawing: j Fig. 1 is a central vertical sectional view of a rockcrushing machine embodying my invention; a 7 Fig. 2 is a top plan viewof the means for adjustably and operatively connecting the lower ends ofthe crushing jaws; and

Fig. 3 necting. link comprised in said connecting means. 1

Referring to the drawing: 1 designates a frame, preferably, thoughnotnecessar-ily, of integral construction, having at its front side astationary jaw 2 provided with a wear plate 3 which is adapted'tobe'removed and replaced by another or new plate. The

movable jaw 4 is supported upon an eccen trio 5 upon a shaft 6 journaledin the opposite sides of the frame 1. The shaft is driven in thedirection indicated by the arrow 7 by power applied to the drive pulley8. Only one fiy wheel 9 is shown in the drawing,but in practice a seconddrive wheel is employed which is fastened to the opposite end of theshaft 6.

The movable jaw 4. is provided with a wear plate 10 which is detachablysecured and held in position by one'or more key rods 11.

The lower end of the movable jaw 4 extends below the lower end of thestationary -TENT PERCY efean nnrsonyor COLU BUS, NEW JERSEY.

is a view in perspective-of a con- 1,545,248 p cs.

RooK-oR-UsHrNe' MACHINE.

26, lsely s rialno. 448,053.

drical bearing 13in which'is journaled 'a tral semi-cylindrical portion15 and flanges 16 which latter are seated againstthe lower endof saidmovable jaw and secured thereto by fastenings 16. The said shaft isprovided with heads 20, at its opposite ends having rectangular shapedholes 21 extend ingtherethrouglr. A semi-cylindrical bearlng or seat 22is provided. in'the front side of thelower end prise rectangularportions 29 and oylindri cal portions '30, the former extending throughthe rectangularholes or" openings jaw 2 and iscurved'rearwardly as shownat 12 and 13 provided n the end of SEUCl' rearwardly curved extens onwith a. semi-cylin-w 21 through the heads andthe latter through thecylindrical openings 28 through the heads 27. The-tie bars are providedwith openings 31 adjacent. their rear ends adapted to receive pins 32and33', the first of which areseated'against the "rear sides of theheads 20'. The forward end portions of the tie bars are screw threaded,as shown, for; adjustable nuts 34 which are seated against washers 35"intermediate the said nuts 'and'the front sides of'theheads 27 being incontact with .the latter; In order to vary or adjust'thedistancebetween'the jaws 2 and 4 it is only necessary to adjust the nuts34 upon the tie bars. VVhe-n the nuts are unscrewed so as to increasethe distancesbetween the same and the pins 32 a coiled spring 40, actingthrough a rod 41' connected at its forward end to the rear side of themovable jaw 4, will effect rearward swinging movement of the said jaw .mu)

The outer end of the rod against the rear side of said rear wall, while60 shaft 14 which'is retained in said'bearing by a cap of thin sheetmetal'h'a'ving alcen rotated. Such the reari-end i thereof; bearsagainst a washe j- 4-4 WhiClLiS retained, upon, tlieouter'. end 0t saidrod by an adjustable nut 45.

In the operation of the crusher the shaft ie t ueli; a p e e ettiro -ibe, ed nto; he

machine serious injury; thereof is ayQidedg by; the shearingor; breaking(of, the pins 32.

Afterjthe; i'en oval of such hard; objects which; caused the shearing;or breaking of the pins}.32;the ipins; 3:3 may-he substituted;

ort hei roken; pin 52; nd hej n a io f eme hiner sum d It will, be iseen that I have combined tin va;

" ng e; machi mean whe y h C s ns; j may; e: ad ly: adjus d wi sp ect tov Z other a d with means for relieving the movable jaw incase anunusual-o 1y hard object, such as a pieceof iron, such nut, bolt or thelike, should find its;

Way into the space: between; the; jaws.

Having thus: described my invention, 7 what, vI; claim aIlC1 C1SlI. 6-:tsecure by. Lets tersiPatent is-: i

A rocl; crushing;inachine comprising r la ive a mo a e Jaw sha i lsd? mbeali ngs upon. the outer, sidesv of the; 1ower- 8I1C1$.,t118 111 0f,the; opposite ends-of one-of connecting the saith shafts, the oppositeends said shafts. being provided with openings extending therethroughpolygonal; in cross, section and the opposite;endsof the, other of; sadv shafts. being provided; with openings which are circular in erosssection, tie bars of. said tie bars being adapted tofit thesaidopenings, adjustable nuts upon the cylin-v u a n s; f, aid e,- a s, andm nss61 cured to the, opposite ends; of? said tie; barsdeptech e neleesee ofi di jaw- .13s ock n s.l ng mach n qonip' isi gi e ative y?m ua leton and r ar iews th ssidtiwe iefi n i' in pre d; with; armga pon ha m tndz ee i nf he;

lower. nd pontio s hereo h ft iiqurrnegle t he ai'si hear ngs, the ha ftwhich effec s, v rtical;

pivotal movements;.. thereof about the isjo-u rnaled in; thebearingsupon thezmovable: jaw-,1 being. provided. with. rectangularopenings, extending through its opposite ends and the other of sa idshafts being provided with cylindrical" openings extendingtherethl'Q-ngh, tie bars extending between the said shafts; the oppositeends of said tie bars, being adapted to fit the openings through thesaid shafts, adjustable nuts upon the cylindrical end; portions. of. thesaid: tie barsfor causing adjustment of the jaws toward and frornaeachother, and the,- oppos te ends ofsa d;ti e bars being provided w thime nor releasing the merebi e j w upon the application of a; predeterminedforce thereto, I substantially v asdescribed.

3. A rock crushing machine comprising a stationary front jaw a pivotedrear jaw which is. adapted;; to have swimging movements toward and from;the said Stationary jaw, shafts supported up on the front and rear sdes. of; the lower; end porti'onsof the front and, reap jaws, theopposite. ends 1. of

the front. shaftbeing provided with round holes therethi ough and' ofthe rear shaft with rectangular holes therethrough, tiebars o nec i g,aid sh fts. e. o t 'l P I-- tions of: said tie bars being cylindrical;and

screw threaded 1 and. extending through the round holes in the oppositeends onthe front shaft and; the rear end: portions. thereof; be-

ing rectangularand extending through the 1 rectgmgular; open ngs in theopposite ends of the rear; shaffithesa drear end portions of said tiebars-having holes extending there through, pins in; said openings forretainingthesaidireaushaft upon said tiebars,

and adjustable nuts upon the screw thread Bd cylindrical; front end;portions of. said i tie bars for: retaining the front shaft on said tiebars. and: for adjusting thevsaid shaft toward; or; from eachother,substantially, esc ed,

In testimony that I claim the foregoingias my invention L have hereuntosigned-i my ame. this 4 th" en f ebniany s, D.

' liEliciimainstream;

